Rework Filters

[menvae]

Currently Filters seem a bit messy and very simple.
This aims to make a shared base for filters for future-proofing, as well as implementing QoL changes for filters like ctrl-clicking to invert selection and right clicking to clear selection.

The Goal here is to make a solid foundation for filters to allow implementing more filters easily in the future, and have all of them share functionality.

Preview:

new-filters.mp4

Changes

• Made a new FluXisFilterButtonsBase class that is the base for the filters and can be customized to allow for any filtering.
• Filters in Song Select now use this new class.
• Status Filter in Song Select now shows all statuses as selected (because they literally are)
• Filters in Map Browser also now use this class.
• Filters in Map Browser now immediately take effect
  • An IdleTracker is implemented just in case.
• Ctrl + Clicking inverts the selection (only if all are selected by default).
• Right Clicking Resets Filters to their Defaults.
• A Selection Filter cannot be empty, when all are deselected it resets back to its defaults.